package com.zzyl.serve.service.impl;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.ObjectUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zzyl.common.core.domain.entity.SysUser;
import com.zzyl.common.core.page.TableDataInfo;
import com.zzyl.common.utils.StringUtils;
import com.zzyl.serve.domain.*;
import com.zzyl.serve.dto.NursingTaskPageDto;
import com.zzyl.serve.mapper.NursingTaskMapper;
import com.zzyl.serve.service.*;
import com.zzyl.serve.vo.NursingPlanVo;
import com.zzyl.serve.vo.NursingProjectPlanVo;
import com.zzyl.serve.vo.NursingTaskUpdateVo;
import com.zzyl.system.service.ISysUserService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.Period;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * 护理任务Service业务层处理
 *
 * @author liuyp
 * @date 2025-07-30
 */
@Slf4j
@Service
public class NursingTaskServiceImpl extends ServiceImpl<NursingTaskMapper, NursingTask> implements INursingTaskService {
    @Autowired
    private NursingTaskMapper nursingTaskMapper;

    @Autowired
    private ISysUserService userService;

    @Autowired
    private ElderServiceImpl elderService;
    /**
     * 查询护理任务
     *
     * @param id 护理任务主键
     * @return 护理任务
     */
    @Override
    public NursingTask selectNursingTaskById(Long id) {
        return this.getById(id);
//        return nursingTaskMapper.selectNursingTaskById(id);
    }

    /**
     * 查询护理任务列表
     *
     * @param dto 护理任务
     * @return 护理任务
     */
    @Override
    public TableDataInfo<NursingTask> selectNursingTaskList(NursingTaskPageDto dto) {
        // 1. 分页查询基础数据
        LambdaQueryWrapper<NursingTask> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(StringUtils.isNotEmpty(dto.getElderName()) && dto.getElderName() != null, NursingTask::getElderName, dto.getElderName())
               .eq(dto.getNurseId() != null, NursingTask::getNursingId, dto.getNurseId())
               .eq(dto.getStatus() != null, NursingTask::getStatus, dto.getStatus())
               .eq(dto.getProjectId() != null, NursingTask::getProjectId, dto.getProjectId())
               .between(ObjectUtil.isNotNull(dto.getStartTime()) && ObjectUtil.isNotNull(dto.getEndTime()),
                       NursingTask::getEstimatedServerTime, dto.getStartTime(), dto.getEndTime());

        // 如果指定了护理员姓名，则添加相关查询条件
        if (StringUtils.isNotEmpty(dto.getNurseName())) {
            wrapper.and(w -> w.like(NursingTask::getNursingId, dto.getNurseName())
                              .or()
                              .apply("EXISTS (SELECT 1 FROM sys_user su WHERE FIND_IN_SET(su.user_id, nursing_id) AND su.nick_name LIKE CONCAT('%', {0}, '%'))", dto.getNurseName()));
        }

        Page<NursingTask> page = this.page(new Page<>(Integer.valueOf(dto.getPageNum()), Integer.valueOf(dto.getPageSize())), wrapper);

        List<NursingTask> list = page.getRecords();
        if (CollUtil.isNotEmpty(list)) {
            for (NursingTask nursingTask : list) {
                // 添加空值检查
                if (nursingTask == null) {
                    continue;
                }

                String nursingId = nursingTask.getNursingId();
                List<String> nursingName = new ArrayList<>();

                // 处理护理员ID，添加空值检查
                if (StringUtils.isNotEmpty(nursingId)) {
                    String[] split = nursingId.split(",");
                    for (String s : split) {
                        // 添加字符串空值检查和数字格式检查
                        if (StringUtils.isNotEmpty(s)) {
                            try {
                                SysUser sysUser = this.userService.selectUserById(Long.parseLong(s.trim()));
                                if (sysUser != null && StringUtils.isNotEmpty(sysUser.getNickName())) {
                                    nursingName.add(sysUser.getNickName());
                                }
                            } catch (NumberFormatException e) {
                                log.warn("护理员ID格式错误: {}", s);
                            }
                        }
                    }
                }
                nursingTask.setNursingName(nursingName);

                // 同时设置 nursingNamesStr 字段，以便前端可以通过索引搜索
                if (CollUtil.isNotEmpty(nursingName)) {
                    nursingTask.setNursingNamesStr(String.join(",", nursingName));
                }

                // 添加护理项目名称的处理逻辑
                if (nursingTask.getProjectId() != null) {
                    NursingProject project = this.nursingProjectService.getById(nursingTask.getProjectId());
                    if (project != null) {
                        nursingTask.setProjectName(project.getName());
                    }
                }
            }
        }

        TableDataInfo<NursingTask> info = new TableDataInfo<>();
        info.setTotal(page.getTotal());
        info.setRows(list);
        info.setCode(200);
        info.setMsg("操作成功");
        return info;
    }



    /**
     * 新增护理任务
     *
     * @param nursingTask 护理任务
     * @return 结果
     */
    @Override
    public int insertNursingTask(NursingTask nursingTask) {
        return this.save(nursingTask) ? 1 : 0;
    }

    /**
     * 修改护理任务
     *
     * @param nursingTask 护理任务
     * @return 结果
     */
    @Override
    public int updateNursingTask(NursingTask nursingTask) {
        return this.updateById(nursingTask) ? 1 : 0;
    }

    /**
     * 批量删除护理任务
     *
     * @param ids 需要删除的护理任务主键
     * @return 结果
     */
    @Override
    public int deleteNursingTaskByIds(Long[] ids) {
        return this.removeByIds(Arrays.asList(ids)) ? 1 : 0;
    }

    /**
     * 删除护理任务信息
     *
     * @param id 护理任务主键
     * @return 结果
     */
    @Override
    public int deleteNursingTaskById(Long id) {
        return this.removeById(id) ? 1 : 0;
    }

    @Autowired
    private ICheckInService checkInService;

    @Autowired
    private ICheckInConfigService checkInConfigService;

    @Autowired
    private INursingLevelService nursingLevelService;

    @Autowired
    private INursingPlanService nursingPlanService;

    @Autowired
    private INursingElderService nursingElderService;

    @Autowired
    private INursingProjectService nursingProjectService;

    /**
     * 生成护理任务
     *
     * @param elder
     */
    @Override
    public void createMonthTask(Elder elder) {
        //校验
        if (elder == null || elder.getId() == null) {
            log.info("老人不能为空");
            return;
        }

        //获取入住信息
        CheckIn checkIn = this.checkInService.getOne(Wrappers.<CheckIn>lambdaQuery().eq(CheckIn::getElderId, elder.getId()));
        if (null == checkIn) {
            log.info("这个老人没有入住信息{}", elder.getId());
            return;
        }
        //获取入住及入住配置信息
        CheckInConfig checkInConfig = this.checkInConfigService.getOne(Wrappers.<CheckInConfig>lambdaQuery().eq(CheckInConfig::getCheckInId, checkIn.getId()));
        if (checkInConfig == null) {
            return;
        }
        //开始时间
        LocalDateTime startTime = LocalDateTime.now();
        //判断开始是在当天时间
        if (checkInConfig.getFeeStartDate().toLocalDate().isEqual(LocalDateTime.now().toLocalDate())) {
            startTime = checkInConfig.getFeeStartDate();
        }

        //护理等级
        NursingLevel nursingLevel = this.nursingLevelService.selectNursingLevelById(checkInConfig.getNursingLevelId());
        //护理计划
        NursingPlanVo nursingPlanVo = this.nursingPlanService.selectNursingPlanById(nursingLevel.getLplanId());
        //查询老人对应的护理员列表
        List<NursingElder> nursingElderList = this.nursingElderService.list(Wrappers.<NursingElder>lambdaQuery().eq(NursingElder::getElderId, elder.getId()));
        String nursingIds;
        if (CollUtil.isNotEmpty(nursingElderList)) {
            //护理员id列表
            List<Long> list = nursingElderList.stream().map(NursingElder::getNursingId).collect(Collectors.toList());
            //多个id用逗号分隔，转换为字符串
            nursingIds = StringUtils.join(list, ",");
        } else {
            nursingIds = "";
        }

        //查询所有的护理项目
        List<NursingProject> list = this.nursingProjectService.list();
        //转换为map key是id,value是name
        Map<Long, String> nursingProjectMap = list.stream().collect(Collectors.toMap(NursingProject::getId, NursingProject::getName));

        //组装护理任务
        List<NursingTask> nursingTasks = new ArrayList<>();

        LocalDateTime finalStartTime = startTime;
        nursingPlanVo.getProjectPlans().forEach(v -> {
            //执行频次
            Integer executeFrequency = v.getExecuteFrequency().intValue();
            //执行时间
            String executeTime = v.getExecuteTime();
            LocalTime localTime = LocalTime.parse(executeTime);
            //开始执行时间
            LocalDateTime firstExecutionTime = LocalDateTime.of(finalStartTime.toLocalDate(), localTime);
            // 计算相差天数
            LocalDateTime monthEndTime = LocalDateTime.of(finalStartTime.getYear(), checkInConfig.getFeeStartDate().getMonth(), finalStartTime.toLocalDate().lengthOfMonth(), 23, 59);
            // 间隔天数
            long diffDays = monthEndTime.toLocalDate().toEpochDay() - finalStartTime.toLocalDate().toEpochDay() + 1;
            if (v.getExecuteCycle().equals(0)) {
                // 日
                this.createTaskByDay(firstExecutionTime, diffDays, nursingTasks, executeFrequency, elder, v, nursingIds, nursingProjectMap);
            } else if (v.getExecuteCycle().equals(1)) {
                // 周
                this.createTaskByWeek(firstExecutionTime, diffDays, nursingTasks, executeFrequency, elder, v, monthEndTime, nursingIds, nursingProjectMap);
            } else {
                // 月
                this.createTaskByMonth(firstExecutionTime, monthEndTime, nursingTasks, executeFrequency, elder, v, nursingIds, nursingProjectMap);
            }
        });

        if (CollUtil.isEmpty(nursingTasks)) {
            return;
        }
        nursingTasks.forEach(t -> t.setTaskType(2));
        this.saveBatch(nursingTasks);
    }

    /**
     * 按月创建任务
     *
     * @param firstExecutionTime
     * @param monthEndTime
     * @param nursingTasks
     * @param executeFrequency
     * @param elder
     * @param v
     */
    private void createTaskByMonth(LocalDateTime firstExecutionTime, LocalDateTime monthEndTime, List<NursingTask> nursingTasks, Integer executeFrequency, Elder elder, NursingProjectPlanVo v, String nursingIds, Map<Long, String> nursingProjectMap) {
        LocalDateTime executionTime = firstExecutionTime;
        Integer diffDay = (monthEndTime.plusSeconds(1).getDayOfMonth() - executionTime.getDayOfMonth()) / executeFrequency;
        for (int x = 0; x < executeFrequency; x++) {
            // 根据时间差和执行顺序计算每个任务的具体时间
            LocalDateTime seconds = executionTime.plusDays(diffDay * x);
            // 初始化护理任务对象
            NursingTask nursingTask = this.getNursingTask(elder, v, nursingIds, seconds, nursingProjectMap);
            // 将生成的任务添加到任务列表中
            nursingTasks.add(nursingTask);
        }
    }

    /**
     * 根据周为单位创建护理任务
     * <p>
     * 此方法旨在根据给定的开始时间、差异天数、执行频率等参数，为指定的老人生成护理任务列表
     * 它考虑了跨年情况以及每月结束时间的限制，避免生成越过月末的有效任务
     *
     * @param firstExecutionTime 首次执行时间，用于计算后续任务的时间点
     * @param diffDays           任务之间的时间差，以天为单位，此方法专注于周级别，故此值应与7的倍数有关
     * @param nursingTasks       护理任务列表，方法将新生成的任务添加到此列表中
     * @param executeFrequency   执行频率，决定每周内任务执行的次数
     * @param elder              老人信息对象，任务相关的老人信息由此对象提供
     * @param v                  护理项目计划的视图对象，包含项目ID等信息
     * @param monthEndTime       每月结束时间的限制，确保任务不会跨月生成
     * @param nursingIds         护理员ID列表，以字符串形式传递，用于分配任务给护理员
     */
    private void createTaskByWeek(LocalDateTime firstExecutionTime, long diffDays, List<NursingTask> nursingTasks, Integer executeFrequency, Elder elder, NursingProjectPlanVo v, LocalDateTime monthEndTime, String nursingIds, Map<Long, String> nursingProjectMap) {
        int i;
        // 以7天为步长遍历差异天数，创建每周的任务
        for (i = 0; i < diffDays - 7; i = i + 7) {
            // 计算每周结束时间
            LocalDateTime dayEndTime = LocalDateTime.of(firstExecutionTime.plusDays(i + 7).toLocalDate(), LocalTime.of(23, 59));
            // 计算本周的执行起始时间
            LocalDateTime executionTime = firstExecutionTime.plusDays(i);
            // 根据执行频率计算时间差，用于确定本周内各任务的时间点
            Integer diffDay = (dayEndTime.plusSeconds(1).getDayOfYear() - executionTime.getDayOfYear()) / executeFrequency;
            // 根据执行频率生成本周的任务
            for (int x = 0; x < executeFrequency; x++) {
                // 根据时间差和执行顺序计算每个任务的具体时间
                LocalDateTime seconds = executionTime.plusDays(diffDay * x);
                // 初始化护理任务对象
                NursingTask nursingTask = this.getNursingTask(elder, v, nursingIds, seconds, nursingProjectMap);
                // 将生成的任务添加到任务列表中
                nursingTasks.add(nursingTask);
            }
        }

        // 处理边界情况，当i超过diffDays-7且小于diffDays时
        if (i > diffDays - 7 && i < diffDays) {
            // 计算到达diffDays时的结束时间
            LocalDateTime dayEndTime = LocalDateTime.of(firstExecutionTime.plusDays(i + 7).toLocalDate(), LocalTime.of(23, 59));
            // 如果结束时间与开始时间年份不同，则返回，避免跨年任务
            if (ObjectUtil.notEqual(dayEndTime.getYear(), firstExecutionTime.getYear())) {
                return;
            }
            // 计算执行时间
            LocalDateTime executionTime = firstExecutionTime.plusDays(i);
            // 计算时间差，确定任务时间点
            Integer diffDay = (dayEndTime.plusSeconds(1).getDayOfYear() - executionTime.getDayOfYear()) / executeFrequency;
            // 根据执行频率生成任务，直到月末
            for (int x = 0; x < executeFrequency; x++) {
                // 计算每个任务的时间
                LocalDateTime seconds = executionTime.plusDays(diffDay * x);
                // 如果任务时间超过月末结束时间，则停止生成
                if (seconds.isAfter(monthEndTime)) {
                    break;
                }
                // 初始化护理任务对象
                NursingTask nursingTask = this.getNursingTask(elder, v, nursingIds, seconds, nursingProjectMap);
                // 将生成的任务添加到任务列表中
                nursingTasks.add(nursingTask);
            }
        }

    }


    /**
     * 按日创建任务
     * @param firstExecutionTime
     * @param diffDays
     * @param nursingTasks
     * @param executeFrequency
     * @param elder
     * @param v
     */
    /**
     * 根据天数创建护理任务
     * <p>
     * 该方法根据首次执行时间、任务间隔天数、护理任务列表、执行频率、老人信息和护理项目计划数据，
     * 创建一系列的护理任务。任务的创建以天为单位，直到达到任务间隔天数为止。
     *
     * @param firstExecutionTime 首次执行时间，标志着任务创建的起始时间
     * @param diffDays           任务间隔天数，确定需要创建任务的天数范围
     * @param nursingTasks       护理任务列表，创建的任务将被添加到此列表中
     * @param executeFrequency   执行频率，决定一天内任务执行的次数
     * @param elder              老人对象，包含执行任务的老人的信息
     * @param v                  护理项目计划数据对象，包含护理项目的相关信息
     */
    private void createTaskByDay(LocalDateTime firstExecutionTime, long diffDays, List<NursingTask> nursingTasks, Integer executeFrequency, Elder elder, NursingProjectPlanVo v, String nursingIds, Map<Long, String> nursingProjectMap) {
        // 遍历每一天，从首次执行时间开始，直到达到任务间隔天数
        for (int i = 0; i < diffDays; i++) {
            // 计算每一天的任务执行起始时间
            LocalDateTime executionTime = firstExecutionTime.plusDays(i);
            // 确定当天任务执行的结束时间（当天的23:59）
            LocalDateTime dayEndTime = LocalDateTime.of(executionTime.toLocalDate(), LocalTime.of(23, 59));
            // 计算当天内每次执行任务之间的小时差，用于确定执行时间点
            Integer diffHour = (dayEndTime.plusSeconds(1).getHour() - executionTime.getHour()) / executeFrequency;
            // 根据执行频率创建任务
            for (int x = 0; x < executeFrequency; x++) {
                // 计算每个任务的具体执行时间
                LocalDateTime seconds = executionTime.plusHours(diffHour * x);
                // 创建新的护理任务对象
                NursingTask nursingTask = this.getNursingTask(elder, v, nursingIds, seconds, nursingProjectMap);
                // 将生成的任务添加到任务列表中
                nursingTasks.add(nursingTask);
            }
        }
    }

    /**
     * 获取护理任务对象
     *
     * @param elder
     * @param v
     * @param nursingIds
     * @param seconds
     * @return
     */
    private NursingTask getNursingTask(Elder elder, NursingProjectPlanVo v, String nursingIds, LocalDateTime seconds, Map<Long, String> nursingProjectMap) {
        NursingTask nursingTask = new NursingTask();
        // 设置任务状态
        nursingTask.setStatus(1);
        // 设置护理员ID列表
        nursingTask.setNursingId(nursingIds);
        // 老人姓名
        nursingTask.setElderName(elder.getName());
        // 设置床位号
        nursingTask.setBedNumber(elder.getBedNumber());
        // 设置预估服务时间
        nursingTask.setEstimatedServerTime(seconds);
        // 设置项目ID
        int projectId = Integer.parseInt(v.getProjectId());
        nursingTask.setProjectId(projectId);
        // 设置老人ID
        nursingTask.setElderId(elder.getId());
        //匹配护理项目
        nursingTask.setProjectName(nursingProjectMap.get(nursingTask.getProjectId()));

        return nursingTask;
    }


    /**
     * 任务改期
     *
     * @param nursingTaskUpdateVo
     */
    @Override
    public void updateTime(NursingTaskUpdateVo nursingTaskUpdateVo) {
        NursingTask nursingTask = this.getById(nursingTaskUpdateVo.getTaskId());
        LocalDateTime estimatedServerTime = LocalDateTime.parse(nursingTaskUpdateVo.getEstimatedServerTime(), DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
        nursingTask.setEstimatedServerTime(estimatedServerTime);

        this.updateById(nursingTask);
    }


    /**
     * 执行任务
     *
     * @param nursingTaskUpdateVo
     */
    @Override
    public void doTask(NursingTaskUpdateVo nursingTaskUpdateVo) {
        //根据TaskId查询任务
        NursingTask nursingTask = this.getById(nursingTaskUpdateVo.getTaskId());
        if (nursingTask == null) {
            return;
        }
/*        LocalDateTime estimatedServerTime = LocalDateTime.parse(nursingTaskUpdateVo.getEstimatedServerTime(), DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
        nursingTask.setEstimatedServerTime(estimatedServerTime);*/
        nursingTask.setStatus(2);
        nursingTask.setRealServerTime(LocalDateTime.now());
        nursingTask.setMark(nursingTaskUpdateVo.getMark());
        nursingTask.setTaskImage(nursingTaskUpdateVo.getTaskImage());
        this.updateById(nursingTask);
    }

    @Override
    public void cancelTask(NursingTaskUpdateVo nursingTaskUpdateVo) {
        NursingTask nursingTask = this.getById(nursingTaskUpdateVo.getTaskId());
        nursingTask.setCancelReason(nursingTaskUpdateVo.getReason());
        nursingTask.setStatus(3);
        this.updateById(nursingTask);
    }

    @Override
    public NursingTask selectNursingTaskByIds(Long id) {
        NursingTask nursingTask = this.nursingTaskMapper.selectNursingTaskByIds(id);



        // 获取老人信息
        Elder elder = this.elderService.getById(nursingTask.getElderId());
        if (elder != null) {
            nursingTask.setAge(this.calculateAge(elder.getBirthday()));
            nursingTask.setIdCard(elder.getIdCardNo());
        }



        return nursingTask;
    }



    private Integer calculateAge(String birthday) {
        if (StringUtils.isEmpty(birthday)) {
            return null;
        }
        try {
            LocalDate birthDate = LocalDate.parse(birthday);
            return Period.between(birthDate, LocalDate.now()).getYears();
        } catch (Exception e) {
            log.warn("日期格式错误: {}", birthday);
            return null;
        }
    }

}
